T042F (Payment method supplements) is a transparent table in SAP ERP ECC 6.0 EHP8 systems (in prior SAP versions it was a pool table). It is part of the FI (Financial Accounting) Module, specifically within the FI-BL-PT (Payment Transactions) application component and is located in the BFIBL_CHECK_D (Payment : General Section) package.
Below is the full application component hierarchy path of the table. By selecting any node, you can navigate through the hierarchy and view all elements of the respective node.
After the hierarchy path, you can find the technical details of the table, including the fields, field descriptions, data elements, checktables, domains, datatypes, field lengths, decimals, and possible standard values. The key fields are marked with a key icon and are highlighted.